[INFO] cloning repository https://github.com/blinkingso/rust_samples [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/blinkingso/rust_samples" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fblinkingso%2Frust_samples", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fblinkingso%2Frust_samples'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 0964ed8dee12b95ccb5284458c0de01a04462a55 [INFO] checking blinkingso/rust_samples against master#5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f for pr-87248 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fblinkingso%2Frust_samples" "/workspace/builds/worker-9/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/blinkingso/rust_samples on toolchain 5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/blinkingso/rust_samples [INFO] finished tweaking git repo https://github.com/blinkingso/rust_samples [INFO] tweaked toml for git repo https://github.com/blinkingso/rust_samples written to /workspace/builds/worker-9/source/Cargo.toml [INFO] crate git repo https://github.com/blinkingso/rust_samples already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] b7da39dee2a90db0af30fca61b08583a4b3c7f56775c898b192013ad6d7ef2c7 [INFO] running `Command { std: "docker" "start" "-a" "b7da39dee2a90db0af30fca61b08583a4b3c7f56775c898b192013ad6d7ef2c7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "b7da39dee2a90db0af30fca61b08583a4b3c7f56775c898b192013ad6d7ef2c7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b7da39dee2a90db0af30fca61b08583a4b3c7f56775c898b192013ad6d7ef2c7", kill_on_drop: false }` [INFO] [stdout] b7da39dee2a90db0af30fca61b08583a4b3c7f56775c898b192013ad6d7ef2c7 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 98b6947c11bcbaed530422f9e13d5d503b10c0dae5e26e10267b7d2218839fd7 [INFO] running `Command { std: "docker" "start" "-a" "98b6947c11bcbaed530422f9e13d5d503b10c0dae5e26e10267b7d2218839fd7", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.97 [INFO] [stderr] Checking cfg-if v1.0.0 [INFO] [stderr] Checking ppv-lite86 v0.2.10 [INFO] [stderr] Checking getrandom v0.2.3 [INFO] [stderr] Checking rand_core v0.6.3 [INFO] [stderr] Checking rand_chacha v0.3.1 [INFO] [stderr] Checking rand v0.8.4 [INFO] [stderr] Checking rust-samples v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused imports: `cmp::Ordering`, `collections`, `io` [INFO] [stdout] --> src/lib.rs:85:11 [INFO] [stdout] | [INFO] [stdout] 85 | use std::{cmp::Ordering, io, collections}; [INFO] [stdout] | ^^^^^^^^^^^^^ ^^ ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `cmp::Ordering`, `collections`, `io` [INFO] [stdout] --> src/lib.rs:85:11 [INFO] [stdout] | [INFO] [stdout] 85 | use std::{cmp::Ordering, io, collections}; [INFO] [stdout] | ^^^^^^^^^^^^^ ^^ ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `m` [INFO] [stdout] --> src/lib.rs:75:9 [INFO] [stdout] | [INFO] [stdout] 75 | let m = back_of_house::create_breakfast("tus", String::from("banana")); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_m` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `m` [INFO] [stdout] --> src/lib.rs:78:9 [INFO] [stdout] | [INFO] [stdout] 78 | let m = back_of_house::Appetizer::Salad; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_m` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `seat_at_table` [INFO] [stdout] --> src/lib.rs:6:12 [INFO] [stdout] | [INFO] [stdout] 6 | fn seat_at_table() { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `take_order` [INFO] [stdout] --> src/lib.rs:11:12 [INFO] [stdout] | [INFO] [stdout] 11 | fn take_order() {} [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `serve_order` [INFO] [stdout] --> src/lib.rs:13:16 [INFO] [stdout] | [INFO] [stdout] 13 | pub fn serve_order() {} [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `take_payment` [INFO] [stdout] --> src/lib.rs:15:12 [INFO] [stdout] | [INFO] [stdout] 15 | fn take_payment() {} [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `fix_incorrect_order` [INFO] [stdout] --> src/lib.rs:19:12 [INFO] [stdout] | [INFO] [stdout] 19 | fn fix_incorrect_order() { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `cook_order` [INFO] [stdout] --> src/lib.rs:25:12 [INFO] [stdout] | [INFO] [stdout] 25 | fn cook_order() {} [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `seasonal_fruit` [INFO] [stdout] --> src/lib.rs:30:13 [INFO] [stdout] | [INFO] [stdout] 30 | seasonal_fruit: String, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Soup` [INFO] [stdout] --> src/lib.rs:50:13 [INFO] [stdout] | [INFO] [stdout] 50 | Soup, [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `server_order` [INFO] [stdout] --> src/lib.rs:55:8 [INFO] [stdout] | [INFO] [stdout] 55 | fn server_order() {} [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `test_rng` [INFO] [stdout] --> src/lib.rs:87:4 [INFO] [stdout] | [INFO] [stdout] 87 | fn test_rng() { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `m` [INFO] [stdout] --> src/lib.rs:75:9 [INFO] [stdout] | [INFO] [stdout] 75 | let m = back_of_house::create_breakfast("tus", String::from("banana")); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_m` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `m` [INFO] [stdout] --> src/lib.rs:78:9 [INFO] [stdout] | [INFO] [stdout] 78 | let m = back_of_house::Appetizer::Salad; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_m` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 13 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `seat_at_table` [INFO] [stdout] --> src/lib.rs:6:12 [INFO] [stdout] | [INFO] [stdout] 6 | fn seat_at_table() { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `take_order` [INFO] [stdout] --> src/lib.rs:11:12 [INFO] [stdout] | [INFO] [stdout] 11 | fn take_order() {} [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `serve_order` [INFO] [stdout] --> src/lib.rs:13:16 [INFO] [stdout] | [INFO] [stdout] 13 | pub fn serve_order() {} [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `take_payment` [INFO] [stdout] --> src/lib.rs:15:12 [INFO] [stdout] | [INFO] [stdout] 15 | fn take_payment() {} [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `fix_incorrect_order` [INFO] [stdout] --> src/lib.rs:19:12 [INFO] [stdout] | [INFO] [stdout] 19 | fn fix_incorrect_order() { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `cook_order` [INFO] [stdout] --> src/lib.rs:25:12 [INFO] [stdout] | [INFO] [stdout] 25 | fn cook_order() {} [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `seasonal_fruit` [INFO] [stdout] --> src/lib.rs:30:13 [INFO] [stdout] | [INFO] [stdout] 30 | seasonal_fruit: String, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Soup` [INFO] [stdout] --> src/lib.rs:50:13 [INFO] [stdout] | [INFO] [stdout] 50 | Soup, [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `server_order` [INFO] [stdout] --> src/lib.rs:55:8 [INFO] [stdout] | [INFO] [stdout] 55 | fn server_order() {} [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `test_rng` [INFO] [stdout] --> src/lib.rs:87:4 [INFO] [stdout] | [INFO] [stdout] 87 | fn test_rng() { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 13 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::num::TryFromIntError` [INFO] [stdout] --> src/main.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use std::num::TryFromIntError; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `t_c::test_vector` [INFO] [stdout] --> src/main.rs:9:5 [INFO] [stdout] | [INFO] [stdout] 9 | use t_c::test_vector; [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::borrow::Borrow` [INFO] [stdout] --> src/main.rs:12:5 [INFO] [stdout] | [INFO] [stdout] 12 | use std::borrow::Borrow; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::ops::*` [INFO] [stdout] --> src/variables.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use std::ops::*; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `cmp::Ordering`, `collections`, `io` [INFO] [stdout] --> src/lib.rs:85:11 [INFO] [stdout] | [INFO] [stdout] 85 | use std::{cmp::Ordering, io, collections}; [INFO] [stdout] | ^^^^^^^^^^^^^ ^^ ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::num::TryFromIntError` [INFO] [stdout] --> src/main.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use std::num::TryFromIntError; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `t_c::test_vector` [INFO] [stdout] --> src/main.rs:9:5 [INFO] [stdout] | [INFO] [stdout] 9 | use t_c::test_vector; [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::borrow::Borrow` [INFO] [stdout] --> src/main.rs:12:5 [INFO] [stdout] | [INFO] [stdout] 12 | use std::borrow::Borrow; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::ops::*` [INFO] [stdout] --> src/variables.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use std::ops::*; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `cmp::Ordering`, `collections`, `io` [INFO] [stdout] --> src/lib.rs:85:11 [INFO] [stdout] | [INFO] [stdout] 85 | use std::{cmp::Ordering, io, collections}; [INFO] [stdout] | ^^^^^^^^^^^^^ ^^ ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `count` is assigned to, but never used [INFO] [stdout] --> src/main.rs:90:13 [INFO] [stdout] | [INFO] [stdout] 90 | let mut count = 0; [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] = note: consider using `_count` instead [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `count` is never read [INFO] [stdout] --> src/main.rs:106:9 [INFO] [stdout] | [INFO] [stdout] 106 | count += 1; [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `y` is assigned to, but never used [INFO] [stdout] --> src/variables.rs:11:13 [INFO] [stdout] | [INFO] [stdout] 11 | let mut y: u32 = 5; [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = note: consider using `_y` instead [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `y` is never read [INFO] [stdout] --> src/variables.rs:12:5 [INFO] [stdout] | [INFO] [stdout] 12 | y = 6; [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> src/variables.rs:15:9 [INFO] [stdout] | [INFO] [stdout] 15 | let x = x + 100; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `spaces` [INFO] [stdout] --> src/variables.rs:31:9 [INFO] [stdout] | [INFO] [stdout] 31 | let spaces = spaces.len(); [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_spaces` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `spaces` [INFO] [stdout] --> src/variables.rs:32:13 [INFO] [stdout] | [INFO] [stdout] 32 | let mut spaces = " "; [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_spaces` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `guess` [INFO] [stdout] --> src/variables.rs:36:9 [INFO] [stdout] | [INFO] [stdout] 36 | let guess: u32 = "42".parse().expect("不是一个数字!"); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_guess` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `b` [INFO] [stdout] --> src/variables.rs:42:9 [INFO] [stdout] | [INFO] [stdout] 42 | let b: u8 = 0b1111_0000; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_b` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `b` [INFO] [stdout] --> src/variables.rs:43:9 [INFO] [stdout] | [INFO] [stdout] 43 | let b: i8 = -0b0111_0000; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_b` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `b` [INFO] [stdout] --> src/variables.rs:47:9 [INFO] [stdout] | [INFO] [stdout] 47 | let b: u8 = 0xff; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_b` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `b` [INFO] [stdout] --> src/variables.rs:49:9 [INFO] [stdout] | [INFO] [stdout] 49 | let b: u8 = 0o77; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_b` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `b` [INFO] [stdout] --> src/variables.rs:51:9 [INFO] [stdout] | [INFO] [stdout] 51 | let b: u8 = b'A'; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_b` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `y` [INFO] [stdout] --> src/variables.rs:56:9 [INFO] [stdout] | [INFO] [stdout] 56 | let y: f32 = 3.0; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_y` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `t` [INFO] [stdout] --> src/variables.rs:61:9 [INFO] [stdout] | [INFO] [stdout] 61 | let t = true; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_t` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `t` [INFO] [stdout] --> src/variables.rs:62:9 [INFO] [stdout] | [INFO] [stdout] 62 | let t: bool = false; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_t` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `cat` [INFO] [stdout] --> src/variables.rs:63:9 [INFO] [stdout] | [INFO] [stdout] 63 | let cat = ' '; [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_cat` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `heart_eyed_cat` [INFO] [stdout] --> src/variables.rs:64:9 [INFO] [stdout] | [INFO] [stdout] 64 | let heart_eyed_cat = '😻'; [INFO] [stdout] | ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_heart_eyed_cat` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> src/variables.rs:70:10 [INFO] [stdout] | [INFO] [stdout] 70 | let (x, y, z) = tum; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `z` [INFO] [stdout] --> src/variables.rs:70:16 [INFO] [stdout] | [INFO] [stdout] 70 | let (x, y, z) = tum; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_z` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `a` [INFO] [stdout] --> src/variables.rs:74:9 [INFO] [stdout] | [INFO] [stdout] 74 | let a: [f32; 6] = [1.1, 2.1, 3.1, 4.1, 5.1, 4.1]; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_a` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `first` [INFO] [stdout] --> src/variables.rs:76:9 [INFO] [stdout] | [INFO] [stdout] 76 | let first = a[0]; [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_first` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `second` [INFO] [stdout] --> src/variables.rs:77:9 [INFO] [stdout] | [INFO] [stdout] 77 | let second = a[1]; [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_second` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `m` [INFO] [stdout] --> src/variables.rs:79:9 [INFO] [stdout] | [INFO] [stdout] 79 | let m: usize = 10; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_m` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `m` [INFO] [stdout] --> src/variables.rs:80:9 [INFO] [stdout] | [INFO] [stdout] 80 | let m: isize = -109999999999999999; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_m` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `m` [INFO] [stdout] --> src/lib.rs:75:9 [INFO] [stdout] | [INFO] [stdout] 75 | let m = back_of_house::create_breakfast("tus", String::from("banana")); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_m` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `m` [INFO] [stdout] --> src/lib.rs:78:9 [INFO] [stdout] | [INFO] [stdout] 78 | let m = back_of_house::Appetizer::Salad; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_m` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:33:9 [INFO] [stdout] | [INFO] [stdout] 33 | for mut i in &mut m { [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `count` is assigned to, but never used [INFO] [stdout] --> src/main.rs:90:13 [INFO] [stdout] | [INFO] [stdout] 90 | let mut count = 0; [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] = note: consider using `_count` instead [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `count` is never read [INFO] [stdout] --> src/main.rs:106:9 [INFO] [stdout] | [INFO] [stdout] 106 | count += 1; [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `y` is assigned to, but never used [INFO] [stdout] --> src/variables.rs:11:13 [INFO] [stdout] | [INFO] [stdout] 11 | let mut y: u32 = 5; [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = note: consider using `_y` instead [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `y` is never read [INFO] [stdout] --> src/variables.rs:12:5 [INFO] [stdout] | [INFO] [stdout] 12 | y = 6; [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> src/variables.rs:15:9 [INFO] [stdout] | [INFO] [stdout] 15 | let x = x + 100; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `spaces` [INFO] [stdout] --> src/variables.rs:31:9 [INFO] [stdout] | [INFO] [stdout] 31 | let spaces = spaces.len(); [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_spaces` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `spaces` [INFO] [stdout] --> src/variables.rs:32:13 [INFO] [stdout] | [INFO] [stdout] 32 | let mut spaces = " "; [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_spaces` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `guess` [INFO] [stdout] --> src/variables.rs:36:9 [INFO] [stdout] | [INFO] [stdout] 36 | let guess: u32 = "42".parse().expect("不是一个数字!"); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_guess` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `b` [INFO] [stdout] --> src/variables.rs:42:9 [INFO] [stdout] | [INFO] [stdout] 42 | let b: u8 = 0b1111_0000; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_b` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `b` [INFO] [stdout] --> src/variables.rs:43:9 [INFO] [stdout] | [INFO] [stdout] 43 | let b: i8 = -0b0111_0000; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_b` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `b` [INFO] [stdout] --> src/variables.rs:47:9 [INFO] [stdout] | [INFO] [stdout] 47 | let b: u8 = 0xff; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_b` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `b` [INFO] [stdout] --> src/variables.rs:49:9 [INFO] [stdout] | [INFO] [stdout] 49 | let b: u8 = 0o77; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_b` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `b` [INFO] [stdout] --> src/variables.rs:51:9 [INFO] [stdout] | [INFO] [stdout] 51 | let b: u8 = b'A'; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_b` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `y` [INFO] [stdout] --> src/variables.rs:56:9 [INFO] [stdout] | [INFO] [stdout] 56 | let y: f32 = 3.0; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_y` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `t` [INFO] [stdout] --> src/variables.rs:61:9 [INFO] [stdout] | [INFO] [stdout] 61 | let t = true; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_t` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `t` [INFO] [stdout] --> src/variables.rs:62:9 [INFO] [stdout] | [INFO] [stdout] 62 | let t: bool = false; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_t` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `cat` [INFO] [stdout] --> src/variables.rs:63:9 [INFO] [stdout] | [INFO] [stdout] 63 | let cat = ' '; [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_cat` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `heart_eyed_cat` [INFO] [stdout] --> src/variables.rs:64:9 [INFO] [stdout] | [INFO] [stdout] 64 | let heart_eyed_cat = '😻'; [INFO] [stdout] | ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_heart_eyed_cat` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> src/variables.rs:70:10 [INFO] [stdout] | [INFO] [stdout] 70 | let (x, y, z) = tum; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `z` [INFO] [stdout] --> src/variables.rs:70:16 [INFO] [stdout] | [INFO] [stdout] 70 | let (x, y, z) = tum; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_z` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `a` [INFO] [stdout] --> src/variables.rs:74:9 [INFO] [stdout] | [INFO] [stdout] 74 | let a: [f32; 6] = [1.1, 2.1, 3.1, 4.1, 5.1, 4.1]; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_a` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `first` [INFO] [stdout] --> src/variables.rs:76:9 [INFO] [stdout] | [INFO] [stdout] 76 | let first = a[0]; [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_first` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `second` [INFO] [stdout] --> src/variables.rs:77:9 [INFO] [stdout] | [INFO] [stdout] 77 | let second = a[1]; [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_second` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `m` [INFO] [stdout] --> src/variables.rs:79:9 [INFO] [stdout] | [INFO] [stdout] 79 | let m: usize = 10; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_m` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `m` [INFO] [stdout] --> src/variables.rs:80:9 [INFO] [stdout] | [INFO] [stdout] 80 | let m: isize = -109999999999999999; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_m` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `m` [INFO] [stdout] --> src/lib.rs:75:9 [INFO] [stdout] | [INFO] [stdout] 75 | let m = back_of_house::create_breakfast("tus", String::from("banana")); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_m` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `m` [INFO] [stdout] --> src/lib.rs:78:9 [INFO] [stdout] | [INFO] [stdout] 78 | let m = back_of_house::Appetizer::Salad; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_m` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:33:9 [INFO] [stdout] | [INFO] [stdout] 33 | for mut i in &mut m { [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/variables.rs:32:9 [INFO] [stdout] | [INFO] [stdout] 32 | let mut spaces = " "; [INFO] [stdout] | ----^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `Ipv4` [INFO] [stdout] --> src/structures.rs:9:8 [INFO] [stdout] | [INFO] [stdout] 9 | struct Ipv4 { [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `Ipv6` [INFO] [stdout] --> src/structures.rs:15:8 [INFO] [stdout] | [INFO] [stdout] 15 | struct Ipv6 { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum is never used: `Ip` [INFO] [stdout] --> src/structures.rs:21:6 [INFO] [stdout] | [INFO] [stdout] 21 | enum Ip { [INFO] [stdout] | ^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum is never used: `State` [INFO] [stdout] --> src/structures.rs:26:10 [INFO] [stdout] | [INFO] [stdout] 26 | pub enum State { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `get_u8` [INFO] [stdout] --> src/structures.rs:32:12 [INFO] [stdout] | [INFO] [stdout] 32 | pub fn get_u8(&self) -> u8 { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum is never used: `Coin` [INFO] [stdout] --> src/structures.rs:40:10 [INFO] [stdout] | [INFO] [stdout] 40 | pub enum Coin { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `value_in_coin` [INFO] [stdout] --> src/structures.rs:46:4 [INFO] [stdout] | [INFO] [stdout] 46 | fn value_in_coin(coin: Coin) -> u8 { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `plus_one` [INFO] [stdout] --> src/structures.rs:54:4 [INFO] [stdout] | [INFO] [stdout] 54 | fn plus_one(x: Option) -> Option { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `main` [INFO] [stdout] --> src/structures.rs:61:4 [INFO] [stdout] | [INFO] [stdout] 61 | fn main() { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `Rng` [INFO] [stdout] --> src/structures.rs:82:8 [INFO] [stdout] | [INFO] [stdout] 82 | struct Rng { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `main` [INFO] [stdout] --> src/variables.rs:6:4 [INFO] [stdout] | [INFO] [stdout] 6 | fn main() { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `max` [INFO] [stdout] --> src/variables.rs:88:4 [INFO] [stdout] | [INFO] [stdout] 88 | fn max(x: i32, y: i32) -> i32 { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `min_between2y` [INFO] [stdout] --> src/variables.rs:93:4 [INFO] [stdout] | [INFO] [stdout] 93 | fn min_between2y(x: i32, y: i32) -> i32 { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `print_max` [INFO] [stdout] --> src/variables.rs:102:4 [INFO] [stdout] | [INFO] [stdout] 102 | fn print_max(x: u32, y: u32, z: bool) { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `operation` [INFO] [stdout] --> src/variables.rs:152:4 [INFO] [stdout] | [INFO] [stdout] 152 | fn operation(f: fn(i32, i32) -> i32, x: i32, y: i32) -> i32 { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant is never used: `MAX_POINT` [INFO] [stdout] --> src/variables.rs:156:1 [INFO] [stdout] | [INFO] [stdout] 156 | const MAX_POINT: u32 = 100_000_1000; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `add_to_wait_list` [INFO] [stdout] --> src/lib.rs:4:16 [INFO] [stdout] | [INFO] [stdout] 4 | pub fn add_to_wait_list() {} [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `seat_at_table` [INFO] [stdout] --> src/lib.rs:6:12 [INFO] [stdout] | [INFO] [stdout] 6 | fn seat_at_table() { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `take_order` [INFO] [stdout] --> src/lib.rs:11:12 [INFO] [stdout] | [INFO] [stdout] 11 | fn take_order() {} [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `serve_order` [INFO] [stdout] --> src/lib.rs:13:16 [INFO] [stdout] | [INFO] [stdout] 13 | pub fn serve_order() {} [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `take_payment` [INFO] [stdout] --> src/lib.rs:15:12 [INFO] [stdout] | [INFO] [stdout] 15 | fn take_payment() {} [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `fix_incorrect_order` [INFO] [stdout] --> src/lib.rs:19:12 [INFO] [stdout] | [INFO] [stdout] 19 | fn fix_incorrect_order() { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `cook_order` [INFO] [stdout] --> src/lib.rs:25:12 [INFO] [stdout] | [INFO] [stdout] 25 | fn cook_order() {} [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `Breakfast` [INFO] [stdout] --> src/lib.rs:28:20 [INFO] [stdout] | [INFO] [stdout] 28 | pub struct Breakfast { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `summer` [INFO] [stdout] --> src/lib.rs:34:20 [INFO] [stdout] | [INFO] [stdout] 34 | pub fn summer(toast: &str) -> Breakfast { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `create_breakfast` [INFO] [stdout] --> src/lib.rs:42:16 [INFO] [stdout] | [INFO] [stdout] 42 | pub fn create_breakfast(toast: &str, fruit: String) -> Breakfast { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum is never used: `Appetizer` [INFO] [stdout] --> src/lib.rs:49:18 [INFO] [stdout] | [INFO] [stdout] 49 | pub enum Appetizer { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `server_order` [INFO] [stdout] --> src/lib.rs:55:8 [INFO] [stdout] | [INFO] [stdout] 55 | fn server_order() {} [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `eat_at_restaurant` [INFO] [stdout] --> src/lib.rs:62:8 [INFO] [stdout] | [INFO] [stdout] 62 | pub fn eat_at_restaurant() { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `test_rng` [INFO] [stdout] --> src/lib.rs:87:4 [INFO] [stdout] | [INFO] [stdout] 87 | fn test_rng() { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `add_to_wait_list` [INFO] [stdout] --> src/front_of_house/hosting.rs:1:8 [INFO] [stdout] | [INFO] [stdout] 1 | pub fn add_to_wait_list(){} [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `fix_incorrect_order` [INFO] [stdout] --> src/front_of_house/back_of_house.rs:3:4 [INFO] [stdout] | [INFO] [stdout] 3 | fn fix_incorrect_order() { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `cook_order` [INFO] [stdout] --> src/front_of_house/back_of_house.rs:9:4 [INFO] [stdout] | [INFO] [stdout] 9 | fn cook_order() {} [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `serve` [INFO] [stdout] --> src/front_of_house/serve.rs:1:8 [INFO] [stdout] | [INFO] [stdout] 1 | pub fn serve() {} [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `desk` [INFO] [stdout] --> src/front_of_house/serve.rs:2:8 [INFO] [stdout] | [INFO] [stdout] 2 | pub fn desk() {} [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `server_order` [INFO] [stdout] --> src/front_of_house.rs:6:8 [INFO] [stdout] | [INFO] [stdout] 6 | pub fn server_order() {} [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `main` [INFO] [stdout] --> src/t_c/test_vector.rs:1:8 [INFO] [stdout] | [INFO] [stdout] 1 | pub fn main() { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `place_holder` [INFO] [stdout] --> src/main.rs:59:4 [INFO] [stdout] | [INFO] [stdout] 59 | fn place_holder() { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `test_map` [INFO] [stdout] --> src/main.rs:68:4 [INFO] [stdout] | [INFO] [stdout] 68 | fn test_map() { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `if_let` [INFO] [stdout] --> src/main.rs:79:4 [INFO] [stdout] | [INFO] [stdout] 79 | fn if_let() { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `guess_game` [INFO] [stdout] --> src/main.rs:110:4 [INFO] [stdout] | [INFO] [stdout] 110 | fn guess_game() { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `test_ownership` [INFO] [stdout] --> src/main.rs:144:4 [INFO] [stdout] | [INFO] [stdout] 144 | fn test_ownership() { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `test_outer` [INFO] [stdout] --> src/main.rs:174:4 [INFO] [stdout] | [INFO] [stdout] 174 | fn test_outer(s: &str) { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `test_outer_str` [INFO] [stdout] --> src/main.rs:178:4 [INFO] [stdout] | [INFO] [stdout] 178 | fn test_outer_str(s: String) { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/variables.rs:32:9 [INFO] [stdout] | [INFO] [stdout] 32 | let mut spaces = " "; [INFO] [stdout] | ----^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `Ipv4` [INFO] [stdout] --> src/structures.rs:9:8 [INFO] [stdout] | [INFO] [stdout] 9 | struct Ipv4 { [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `Ipv6` [INFO] [stdout] --> src/structures.rs:15:8 [INFO] [stdout] | [INFO] [stdout] 15 | struct Ipv6 { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum is never used: `Ip` [INFO] [stdout] --> src/structures.rs:21:6 [INFO] [stdout] | [INFO] [stdout] 21 | enum Ip { [INFO] [stdout] | ^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum is never used: `State` [INFO] [stdout] --> src/structures.rs:26:10 [INFO] [stdout] | [INFO] [stdout] 26 | pub enum State { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `get_u8` [INFO] [stdout] --> src/structures.rs:32:12 [INFO] [stdout] | [INFO] [stdout] 32 | pub fn get_u8(&self) -> u8 { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum is never used: `Coin` [INFO] [stdout] --> src/structures.rs:40:10 [INFO] [stdout] | [INFO] [stdout] 40 | pub enum Coin { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `value_in_coin` [INFO] [stdout] --> src/structures.rs:46:4 [INFO] [stdout] | [INFO] [stdout] 46 | fn value_in_coin(coin: Coin) -> u8 { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `plus_one` [INFO] [stdout] --> src/structures.rs:54:4 [INFO] [stdout] | [INFO] [stdout] 54 | fn plus_one(x: Option) -> Option { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `main` [INFO] [stdout] --> src/structures.rs:61:4 [INFO] [stdout] | [INFO] [stdout] 61 | fn main() { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `Rng` [INFO] [stdout] --> src/structures.rs:82:8 [INFO] [stdout] | [INFO] [stdout] 82 | struct Rng { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `main` [INFO] [stdout] --> src/variables.rs:6:4 [INFO] [stdout] | [INFO] [stdout] 6 | fn main() { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `max` [INFO] [stdout] --> src/variables.rs:88:4 [INFO] [stdout] | [INFO] [stdout] 88 | fn max(x: i32, y: i32) -> i32 { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `min_between2y` [INFO] [stdout] --> src/variables.rs:93:4 [INFO] [stdout] | [INFO] [stdout] 93 | fn min_between2y(x: i32, y: i32) -> i32 { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `print_max` [INFO] [stdout] --> src/variables.rs:102:4 [INFO] [stdout] | [INFO] [stdout] 102 | fn print_max(x: u32, y: u32, z: bool) { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 78 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `operation` [INFO] [stdout] --> src/variables.rs:152:4 [INFO] [stdout] | [INFO] [stdout] 152 | fn operation(f: fn(i32, i32) -> i32, x: i32, y: i32) -> i32 { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant is never used: `MAX_POINT` [INFO] [stdout] --> src/variables.rs:156:1 [INFO] [stdout] | [INFO] [stdout] 156 | const MAX_POINT: u32 = 100_000_1000; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `add_to_wait_list` [INFO] [stdout] --> src/lib.rs:4:16 [INFO] [stdout] | [INFO] [stdout] 4 | pub fn add_to_wait_list() {} [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `seat_at_table` [INFO] [stdout] --> src/lib.rs:6:12 [INFO] [stdout] | [INFO] [stdout] 6 | fn seat_at_table() { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `take_order` [INFO] [stdout] --> src/lib.rs:11:12 [INFO] [stdout] | [INFO] [stdout] 11 | fn take_order() {} [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `serve_order` [INFO] [stdout] --> src/lib.rs:13:16 [INFO] [stdout] | [INFO] [stdout] 13 | pub fn serve_order() {} [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `take_payment` [INFO] [stdout] --> src/lib.rs:15:12 [INFO] [stdout] | [INFO] [stdout] 15 | fn take_payment() {} [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `fix_incorrect_order` [INFO] [stdout] --> src/lib.rs:19:12 [INFO] [stdout] | [INFO] [stdout] 19 | fn fix_incorrect_order() { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `cook_order` [INFO] [stdout] --> src/lib.rs:25:12 [INFO] [stdout] | [INFO] [stdout] 25 | fn cook_order() {} [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `Breakfast` [INFO] [stdout] --> src/lib.rs:28:20 [INFO] [stdout] | [INFO] [stdout] 28 | pub struct Breakfast { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `summer` [INFO] [stdout] --> src/lib.rs:34:20 [INFO] [stdout] | [INFO] [stdout] 34 | pub fn summer(toast: &str) -> Breakfast { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `create_breakfast` [INFO] [stdout] --> src/lib.rs:42:16 [INFO] [stdout] | [INFO] [stdout] 42 | pub fn create_breakfast(toast: &str, fruit: String) -> Breakfast { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum is never used: `Appetizer` [INFO] [stdout] --> src/lib.rs:49:18 [INFO] [stdout] | [INFO] [stdout] 49 | pub enum Appetizer { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `server_order` [INFO] [stdout] --> src/lib.rs:55:8 [INFO] [stdout] | [INFO] [stdout] 55 | fn server_order() {} [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `eat_at_restaurant` [INFO] [stdout] --> src/lib.rs:62:8 [INFO] [stdout] | [INFO] [stdout] 62 | pub fn eat_at_restaurant() { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `test_rng` [INFO] [stdout] --> src/lib.rs:87:4 [INFO] [stdout] | [INFO] [stdout] 87 | fn test_rng() { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `add_to_wait_list` [INFO] [stdout] --> src/front_of_house/hosting.rs:1:8 [INFO] [stdout] | [INFO] [stdout] 1 | pub fn add_to_wait_list(){} [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `fix_incorrect_order` [INFO] [stdout] --> src/front_of_house/back_of_house.rs:3:4 [INFO] [stdout] | [INFO] [stdout] 3 | fn fix_incorrect_order() { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `cook_order` [INFO] [stdout] --> src/front_of_house/back_of_house.rs:9:4 [INFO] [stdout] | [INFO] [stdout] 9 | fn cook_order() {} [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `serve` [INFO] [stdout] --> src/front_of_house/serve.rs:1:8 [INFO] [stdout] | [INFO] [stdout] 1 | pub fn serve() {} [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `desk` [INFO] [stdout] --> src/front_of_house/serve.rs:2:8 [INFO] [stdout] | [INFO] [stdout] 2 | pub fn desk() {} [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `server_order` [INFO] [stdout] --> src/front_of_house.rs:6:8 [INFO] [stdout] | [INFO] [stdout] 6 | pub fn server_order() {} [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `main` [INFO] [stdout] --> src/t_c/test_vector.rs:1:8 [INFO] [stdout] | [INFO] [stdout] 1 | pub fn main() { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `place_holder` [INFO] [stdout] --> src/main.rs:59:4 [INFO] [stdout] | [INFO] [stdout] 59 | fn place_holder() { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `test_map` [INFO] [stdout] --> src/main.rs:68:4 [INFO] [stdout] | [INFO] [stdout] 68 | fn test_map() { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `if_let` [INFO] [stdout] --> src/main.rs:79:4 [INFO] [stdout] | [INFO] [stdout] 79 | fn if_let() { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `guess_game` [INFO] [stdout] --> src/main.rs:110:4 [INFO] [stdout] | [INFO] [stdout] 110 | fn guess_game() { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `test_ownership` [INFO] [stdout] --> src/main.rs:144:4 [INFO] [stdout] | [INFO] [stdout] 144 | fn test_ownership() { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `test_outer` [INFO] [stdout] --> src/main.rs:174:4 [INFO] [stdout] | [INFO] [stdout] 174 | fn test_outer(s: &str) { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `test_outer_str` [INFO] [stdout] --> src/main.rs:178:4 [INFO] [stdout] | [INFO] [stdout] 178 | fn test_outer_str(s: String) { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 4.73s [INFO] [stdout] warning: 78 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "98b6947c11bcbaed530422f9e13d5d503b10c0dae5e26e10267b7d2218839fd7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "98b6947c11bcbaed530422f9e13d5d503b10c0dae5e26e10267b7d2218839fd7", kill_on_drop: false }` [INFO] [stdout] 98b6947c11bcbaed530422f9e13d5d503b10c0dae5e26e10267b7d2218839fd7